在工作面推进过程中底板的破坏范围直接影响瓦斯抽采和顶板突水防治,是生产实践中必须重点关注的节点。为能掌握胜达飞煤矿1103工作面推进过程中的底板破坏规律,采用数值模拟和理论分析相结合的方法对开采过程中的底板破坏进行分析,得出推进过程中破坏带的最大深度位置在端部。为推进过程中水害防治等提供了借鉴,为施工过程中的重点"照顾"提供了理论依据。
The damaged area of floor in working face mining directly affects gas drainage and water prevention and control,holds the key to safe production. In order to master the floor damage law in 1103 working face of Shengdafei Mine,numerical simulation and theory analysis were adopted to analyze the floor damage in mining,the deepest position of the damaged area was on the endings. The result provided reference for water prevention and control and safe construction.